Smoke incident on Nagaon Express prompts emergency stop in Andhra Pradesh’s Nellore Share July 21, 2024 minutespedia.in Topstory A smoke incident caused by brake binding on the Nagon Express train from Sibsagar, Assam to Chennai, Tamil Nadu, led to an emergency stop near the Adaviramapuram-Siripuram railway gate in Kavali, Nellore district.